Counter



W WlLLIAMSON.

COUNTER.

APPLICATION FILED JULY 18, 1918.

1,426,434, Patented Aug. 22, 1922.

2 2 SHEETS-SHEET lr: 8 10 for? V lllllIlllllllllllllmlllllilllllllllilllifllllllllllllllllmlmfi w.' WILLIAMSON.

COUNTER. APPLICATION FILED IuLY I8, I918- Patented Aug. 22, 1922.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

WALTER WILLIAMSON, OF NEW YORK, 'N. Y., ASISIGNOR 'I-O CROSBY STEAM GAGE &

VALVE COMPANY, OF BQfiTQN, MASSACHUSETTF, A, COR-PQRATION OF MASSACHU- SETTS.

COUN E Eipetificatien 01? Letters Patent.

Patent-ed Aug. 22, 1922.

A plication filed July 18, 1918. Serial No. 245,457.

To all Q1272 0m 2'13 may concern:

Be it known that L lVALrnn WILLIAMSON, a subjeritof the King of Great Britain, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Counters of which the following is a specification.

This invention relates to revolution or similar counters and particularly to the resetting means therefor and its object is to provide such means for quickly and accurately resetting the counter, or returning 1t to zero. c

The invention is illustrated by the accompanying drawings in which:

Fig. 1 is a side elevation of the counter;

Fig. 2 is a section on the line 22 Fig. 1;

Fig. 3 is a section on the line 3-3 Fig. 2;

Fig. 1 is a section on the line 4+4 Fig. 1;

Fig. 5 is a view similar to Fig. 1 showing parts in resetting position;

Fig. 6 is a section on the line 6-6 Fig. 8; and

Fig. 7 is a section on the line 7-7 Fig. 3.

The device comprises a wheel shaft 1 jou nalled in the frame 1* on which shaft are rotatably mounted the wheels 2 2 the wheel 2 being the initial wheel, each of which is furnished on one side with the annularly disposed and evenly spaced studs 3 and on the other side with the spring-pressed driving pawl 1 and each of which is numbered on its face. Spacing these wheels are the cams 5 fixedly mounted on the shaft and tting into annular grooves 6 therein and locked in said grooves by wires 7 disposed in exterior lengthwise slots 8 in the shaft and passing through holes 9 in the cams.

The spring-pressed looking pawls 10 are vibratively mounted on shaft 11 journalled in the frame and they normally severally engage studs 3 on the wheels thereby preventing their rotation; these locking pawls are furnished with pins 1O engaging pins 11 on shaft 11; to the end of which shaft is fixed the spring-pressed lever 12 furnished with detent 18 adapted to engage a corre sponding notch 18" in the hub 17 of the resetting knob 17 fixed to the end of shaft 1.

The counter is actuated by driving gear 13 rotatably mounted on shaft 1 and furnished on one side with the annularly disposed studs 1% adapted to engage the springpressed ratchet pawl 15 mounted onthe adjacent Side of disc 16 rotatably mounted on shaft 1 between said driving gear 13 and the 41; and cams 5 all in the same co-operative A ane; driving gear 13 and disc 16 are rotatably mounted on shaft 1 in operative relation to wheel 2; the locking pawls 10 are severally in spring-pressed engagement with the alined wheels, thereby preventing their rotation; the spring-pressed locking lever 12 keeps shaft 1 from rotating; the parts are all in alinement and the counter is at Zero, the position of the cams and pawls being as shown in Fig. 5. i

WVhen gear 13 is rotated in the direction indicated by the arrow (Fig. 6), one of the studs 14 engages ratchet pawl 15 on disc 16, thereby rotating said disc which in turn with its driving pawl 16 engages stud 3 on adjacent wheel 2* and rotates it, which wheel similarly engages the adjacent wheel and so on through the series; the driving pawl in each instance traveling along the face of the cam until forced outwardly termined by the contour of the cam which in the present instance is 1/10th of one revolution, or 86; the pawl then disengages the stud and simultaneously the locking pawl 10 engages the next stud on the wheel. to be similarlydisengaged therefrom on the return of the driving pawl; and so the operation repeats itself from wheel to wheel, each wheel in one complete rotation rotating the adjacent wheel 36.

It will be obvious that the relation of the driving pawls to their respective cams is the same when all the wheels are at Zero, this position being attained in each instance immediately the pawl has traversed the projection 5 (Fig. 5) on cam 5 and returned to its normally initialposition; and we may at any time secure this. zero position of the wheels by releasing the studs from the lookingpawls, which is accomplished by means of lever 12 and pins 10 and 11 and then; by turning knob 17, rotating shaft 1 and with it cams 5 which will severally engage their respective driving pawls and force them into the position shown in Fig, 5; and to accomplish this resetting of the counter, the knob 17 is turned in the direction in 'licated by the arrow 6) permitting ratchet pawl 15 in disc 16 to pass studs Il l in lrivin g gear 13 which remains undisturbed during: this operation of resettin I claim 1. In a counter oi? the character d-s- "ibed in combination, a main shaft; 11 cans for rotating the shalt and means for preventing the rotation thereof, each of s r means be ing under the control of the operator; a plurality of wheels rotatably mounted on said shaft alternately with cams fixedly mounted thereon; each wheel having on one side annularly disposed studs and on the other side a spring-controlled driving: pawl:

a rocking shaft disposed parallel to the main shaft; and a plurality oi spring-p sed locking pawls vibratively mounted thereon and severally engaging each a stud ou the oppositely disposed wheels; the driving pawls engaging and co-acting severally with the adjacent cams to successively disengage the locking pa'wls from the studs and them-- selves engage the studs and drive the wheels a predetermined distance and then release them.

in a counter oi the character described, in combination, a main shaft; means for rotating the shai't and means tor preventing the rotation thereof, each of said means being under the control of the operator; plurality of wheels rotatably mounted on said shaft alternately with cams fixedly mounted thereon; each wheel having on one side annularly disposed studs and on the other side a spring-controlled driving pawl a rocking shaft disposed parallel to the main shatt; and a plurality of springiressed locking pawls vibratively mounted thereon and severally engaging each a stud on the oppositely disposed wheels; the driving pawls engaging and co-acting severally with the adjacent cams to successively disengage the locking pawls from the studs and them selves engage the studs and drive the wheels a predetermined distance and then release them; with means for actuating the initial wheel.

In testimony whereof I have ailixed my signature.

WVALTER \VILLIAMSON. 

